Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1991-03-11
1993-02-02
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
208140, 502 38, B01J 2396, B01J 3814, C10G 3509, C10G 35085
Patent
active
051837897
ABSTRACT:
A process for the regeneration of a coked platinum, or polymetallic platinum reforming catalyst with ozone. The coked catalyst is contacted, and carbon burned from the catalyst at temperatures ranging from about 20.degree. C. to 200.degree. C., preferably about 60.degree. C. to 150.degree. C., with a gaseous stream containing ozone in concentration ranging from about 1 to 50 volume percent ozone sufficient to substantially deplete said catalyst of sufficient carbon to restore the activity of the catalyst to that of the corresponding fresh catalyst.
REFERENCES:
patent: 1678626 (1928-07-01), Jaeger
patent: 4467045 (1984-08-01), Fuhg
patent: 4600700 (1986-07-01), McHale
R. G. Copperthwaite, G. J. Hutchings, P. Johnson, S. W. Orchard, Ozone Reactivation of A Synthetic Zeolite Catalyst for Methanol Conversion J. Chem. Soc., Chem. Commun. 1985, pp. 644-645.
R. G. Copperthwaite, G. J. Hutchings, P. Johnston, S. W. Orchard, Regeneration of Pentasil Zeolite Catalysts Using Ozone and Oxygen, J. Chem. Soc., Faraday Trans. 1, 1986, 82, pp. 1007-1017.
G. J. Hutchings, R. G. Copperthwaite, T. Themistocleous, G. A. Foulds, A. S. Bielovitch, B. J. Loots, G. Howitz, P. van Eck; Applied Catalysis, 34, 1987, pp. 153-161.
Exxon Research and Engineering Company
Konopka Paul E.
Naylor H. E.
Proctor L. A.
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